Burner



Ot'. 31, 1933. H. c. LITTLE 1,933,146

Bumimz Filed Jan. 27, 1930 INVENTOR.

HYFIRRY B. LITTLE ATTORNEY Patented Oct. 31, 1933 UNITED STATES PATENT OFFICE 1 Claim.

This invention relates to improvements in burners.

The principal object of this invention is to produce a burner for use with liquid fluid.

A further object is'to produce a heater wherein an eflicient circulation of the heated products of combustion is maintained.

A further object is to provide a heater having a hot zone causing a positive heat circulation.

Other objects and advantages will be apparent during the course of the following description.

In the accompanying drawing forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a vertical cross section of my improved burner in use with a heater, and

Figure 2 is a top plan view of the burner throat.

Referring to the drawing, the numeral 5 designates a boiler, preferably cylindrical in shape and having a top 6 and bottom 7. Inserted in the bottom '7 is a cylindrical member 8 having a cover plate 9, the result being that the cylinder 8 and cover 9 form a combustion chamber 11 which is surrounded by water confined within the boiler 5. If desired, an observation door 12 may be provided whereby the condition of the fire within the chamber 11 may be viewed.

At 13, I have shown an annular plate which closes the bottom. of the chamber 11 and is provided with an upwardly projecting ring-shaped member 14, which terminates in an annularledge 16 upon which rests a tubular refractory ring 17. This ring shaped member 14 is hollow so as to receive an upwardly projecting annular ring 18 carried upon a plate 19 having an orifice 21 therethru. This orifice has a collar 22 formed thereabout and of such size as to be spaced a slight oil may be ignited in any convenient manner. As soon as ignited, primary combustion takes place, which is supported by air entering the pipe 15. The manner of admitting this primary air is immaterial as far as the operation of the burner is concerned. The products of combustion resultingfrom the primary combustion will pass upwardly through the throat 21 through the hollow refractory lining 17 and will impinge upon the top 9 of the cylinder 8. Secondary air will enter the space between the plate 19 and the annular ring 13 and will pass, as indicated by the arrows, entering the fire zone at a point adjacent the bottom of the refractory lining. This secondary air causes a very hot area to be created at this 7 point with the result that perfect combustion takes place and further, the products of combustion are given a greater impetus, thus causing a better circulation.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same and that various changes relative to the material, size, shape and arrangement of parts may be resorted to without departing from the spirit of the invention or the scope of the subjoined claim.

Having thus described my invention I claim:-

In an oil burner, a burner-chamber means for admitting fuel and primary air to said burner chamber, a plate positionedon said burnerchamber, an upstanding collar formed on said plate, said plate having an orifice formed therethrough and concentric with said collar, an annular ringv formed on said plate and spaced from said collar, a ring-shaped member spaced above said plate, said ring-shaped member being hollow so as to surround said annular ring and spaced therefrom, said ring-shaped member having an annular ledge, a refractory ring supported on said ledge, said ring and said ledge being spaced from said collar, whereby products of combustion pass- .ing through said orifice will combine with air passing between said ring shaped member and said annular ring to create a secondary combustion HARRY C. LITTLE. 

